Rolling mill as a class of key iron and steel industry metallurgical equipment, responsible for the national production of heavy plate strip, its productivity and product quality of course become the focus of attention. In a large rolling mill equipment, rolling mill drive system as the interface with the electrical system, electrical energy into mechanical energy, and rolled steel production process to meet the torque and speed required for high precision and high dynamic control performance. In this paper, plate and strip rolling mill of the early nonlinear dynamic system as the research object, through theoretical analysis, numerical simulation and experimental study, done the following work.For the beginning of the process of rolling mill main drive system of the nonlinear characteristics of chaotic motion, through the theoretical analysis has proved that the original vibration system to become passive equivalent non-linear systems, the use of passive non-linear system characteristics, a class of moving boundary mechanical vibration system to exert control over the chaotic behavior, simulation experiments show that the control strategy is not only achieved rapid control of the system, and control is simple, easy to achieve.
